Either you take on the basic premise or you don't bother watching fantasy/SF. My review is in a way about myopic reviewers as much as about the production.
Why complain that blind people "couldn't possibly" do stuff (including things that blind people in the here and now actually do) while being fine with various supernatural powers? One of the main characters, Paris gets sudden precognitions, states that she sees multiple futures, and actually is addressed once or twice as "presage".
Anyway, of course there actually could be a post-apocalypse population of blind people, if they are a tiny society in the material remains of a vast global population that already got rid of most dangerous critters and left all sorts of useful materials (like "godbone") literally lying around. Have people forgotten that there are animals that effectively have no sight? Animals without big brains.
As to what blind people can and can't do, the ignorance shown in some reviews is shocking: People's abilities to navigate and to do whatever they do, vary. But this is a society that would have either started off with newly blind survivors being mentored by people who were already anyway blind, or else just no sighted babies being born, and the remnant sighted people trying to adapt a world for their children before they die. They would expect competence. This would explain why an area with a population of millions has by the time of the series got "cities" of a few thousand, armies of a few hundred.
So: some objections by other reviewers.
1. Blind people wouldn't have, or be able to use, open fires? There are still, even now, large parts of the planet where live flame is the only option and where rates of blindness can be quite high. People do what they must. Yes, blind people do burn their food or themselves at times. Yes, they sometimes bump into things - bump their hands a lot, too. Yes, they do sometimes get cut, get lost, or trip and fall over. (Not all of the facial scars in See are to be read as made on purpose). But this is life, they just get on with it. There would be a "right way" to set up a fireplace and any seating so that anyone could be safe. The home cookfire, the street brazier, the camp fire - each with its protocol throughout a given region: such as where you'd site it, where in relation to the fire are the ladles or tongs or seating etc.
Blind people who are used to cooking with live fire know by character of heat, smell and sound what the state of the fire is - flames, glowing coals, etc. The characters of the series always put their fire in a container - a brazier, a cauldron or within a high kerb. They know exactly where each indoor fire is because everything in the indoor spaces is organised to a consistent pattern in each community.
2. Can't make stuff? Ask yer granny. Generations of women (and fishermen) used to walk around knitting and chatting - they already will knit a pullover while barely looking at what they are doing. Why presume that blind people could not make clothes? Or weapons? Post-apocalypse, it's not like they need to mine the ore. (A repurposed car leaf-spring seems to be popular in the world of See.) In the UK, until just a few years ago, there were a couple of furniture factories where the workforce were blind. The furniture was made for sighted people, so it looked like any other furniture. There are many blind handweavers. There is at least one blind potter who is also a hand amputee; he does demos. If you watch a sighted seamstress construct kimono the traditional way, you will see that she literally could do everything - marking, pinning, stitching - with her eyes shut *using the very same techniques*. Children working in dim light on tiny 19th C stitching not uncommonly went blind from it - and many simply continued the same work. There are a few people blind from birth who can use sewing machines (although computerisation and touchscreen technology will make make this harder.)
The people of the story wear their seams inside out as both comfortable for touch-sensitive people, and as decorative for the hand to feel. Their seam stitching is large - doubling as embroidery. The queen's whitish dress carries the bloodstains from more than one murder because no-one is doing stain removal. I do wonder why some if their fabric is a deep solid red colour, and some mustard colours, though, unless like the queen's bed-quilt of a gown, it is old, rediscovered fabric. God knows, many of our synthetic clothes will probably be dug out of landfill centuries from now. Or maybe they like to use scented rinses that dye things coincidentally. Maybe in future shows, the sighted youngsters will be able to recognise other sighted people who have chosen colourful clothes...?
3. Can't do battle/ move in formation. Why presume that people who necessarily train with weapons as children for self-defence (no police, no jails) would be unable to form up ranks - in streets that have overhead guidelines and dangling signposts? (In one real mediaeval battle, Bannockburn, frontline troops came down a dark, heavily wooded ridge before sunrise - in files 20 deep - by holding their long spears horizontally as a continuous guiderail.). Getting into formation and moving as a group would be a major part of the square-bashing bootcamp training of a blind army, just as has been for a couple of thousand years. And yes, blind people can ride horses.
Blind individuals often navigate busy city blocks to the square foot by noticing how the air current changes at doorways, edges of buildings, intersections. How much easier to move in formation, when keeping to a "shoreline" is delegated to specialist/outliers? As to knowing who is who in battle? In a group out on the street, I was identified by a blind couple of students as being in the group, without me saying a word, because of my quiet steps, shorter stride and my breath sounds/cough at a certain height (I'm very petite). This was a couple who had only met me once or twice. The world of See is brutal; why would they demur at losing people to friendly-swipe deaths anyway? When have governments or generals ever surrendered a war because casualties among common soldiers are distressing?
War face paint? Not exactly: it is the local dirt, it smells of "us" or "this place", and it is wet, making the face slippery, hard to orient to and hard to grab. If you are about to cut a throat or break a neck, the face muck could save a friend who can't gasp "chet-chet". Baba Voss has a habit of scraping up gravel, dirt, ice and throwing it in a rising arc: or even shaking the blood off his sword and listening for how far away and how close it splats. This diagonal sonar pulse tells him exactly the direction and distance of his opponent. To misdirect this kind of move is also why he likes to slide low along the ground, or to feint by making sounds with the tip of his weapon at arms length.
You don't need to "believe" anything about blind people, even if you don't know any. On youtube is an interesting video of two blind guys who agree to meet the filmmaker in busy urban area that they have never been to: this is before gps was personally feasible. They were only slightly late. One of them likes hiking mountain trails, which he does without any sighted person. There's other videos of a boy of around 12-13 playing in his suburban street, running around parked cars easily: even cycling. At a distance, indistinguishable from any other kid.
